NICKEL PARTICLE AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide nickel particles having excellent dispersibility which is obtained by a liquid phase method.SOLUTION: There are provided nickel particles produced by a liquid phase method in which the ratio between a crystal peak of nickel carbide and a crystal peak of nickel in the XRD measurement is 5% or less and the calculated value calculated by the following expression is 50 or less. V=A/S/D/10000000(1) {wherein, A means the detection amount [ppm] of nickel dimethylglyoxime detected by the measurement method of nickel specified in JIS K 0102 59.1, S means the specific surface area [m/g] of nickel particles measured by a gas absorption method and D means the average particle diameter of nickel particles measured by a scanning electron microscope (SEM)}.SELECTED DRAWING: None 【課題】液相法によって得られ、優れた分散性を有するニッケル粒子を提供する。【解決手段】ニッケル粒子は、液相法で製造され、ＸＲＤ測定における炭化ニッケルの結晶ピークとニッケルの結晶ピークの比率が５％以下であり、下記の式（１）で計算される計算値Ｖが５０以下である。Ｖ＝Ａ／Ｓ／Ｄ３／１０００００００ ... ...（１）｛式中、ＡはＪＩＳ Ｋ ０１０２ ５９．１に規定するニッケルの測定法で検出されるニッケルジメチルグリオキシムの検出量［ｐｐｍ］を意味し、Ｓはガス吸着法で測定されるニッケル粒子の比表面積［ｍ２／ｇ］を意味し、Ｄは走査型電子顕微鏡（ＳＥＭ）で測定されるニッケル粒子の平均粒子径［ｎｍ］を意味する。｝【選択図】なし